_spf.sicurezzapostale.it has no NS records.
NS records for this zone are defined at sicurezzapostale.it.
NS records for this zone are defined at sicurezzapostale.it.
Question and response
Question
dig _spf.sicurezzapostale.it. NS
Answer
The response has no answer records.
Authority
sicurezzapostale.it. 60 SOA dns1.sicurezzapostale.it. maintainer.namirial.com. 2192 86400 1800 604800 60
Additional
. 0 OPT ; payload 4000, xrcode 0, version 0, flags 0